Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
45
1.7717
D
Outside diameter
73
2.874
r
Chamfer (min)
1
0.0394
Notes
Thrust bearing ratings are axial values Ca / Coa; T is the overall height. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
45
Outside dia. D (mm)
73
Load ratings & speeds
Basic dynamic axial rating Ca (lbs)
10791
Basic static axial rating Coa (lbs)
23605
Basic dynamic axial rating Ca (N)
48000
Basic static axial rating C0a (N)
105000
Limiting speed - grease (rpm)
2,400
Limiting speed - oil (rpm)
3,600
Weight
Weight (kg)
0.652
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
1
Chamfer r1 min (mm)
0.6
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 800 rpm
4
12,000
102
2,117
6
8,000
392
8,177
8
6,000
1,024
21,333
10
4,800
2,154
44,884
15
3,200
8,323
173,406
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 48,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
NSK
Source catalogue
NSK CAT. No. E1103 (metric)
Catalogue page
p.319 (dimensions)
Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
